Clamshell Bucket - Volvo L20B Owner's Manual

Attachments - optional equipment
100

Clamshell bucket

Clamshell bucket
The clamshell bucket is most suitable for loading bulky material,
e.g. biological waste, tree branches, bulky refuse as well as for
manoeuvring the shredder machine.
Operation
Installation of clamshell bucket, see "Installation and removal of
quick change attachment equipment with auxiliary hydraulics".
The clamshells are actuated with the lever (2).
When entering into the material keep the clamshells fully open, as
otherwise the resulting very high pressure may cause leaks on
M300101A
hoses and seals.
Do not operate the clamshells with full power against the end stop.
Due to the high opening/closing speed the cylinders may be dam-
aged.
Note:
1
To manoeuvre the shredder machine with the ball joint tip the
clamshell bucket completely back and close the grab.
2
Maintenance
Material which is trapped between cylinder and bucket must be
immediately removed, as otherwise the piston rod of the cylinder
may be damaged or bent.
Check hydraulic lines at regular intervals for leaks and visible
external damage, replace if necessary.
M200054A
Grease the bearings on claws and cylinders every 50 operating
hours. For quality of grease refer to the lubricant table.
Always relieve the pressure in the hydraulic system before starting
maintenance or repair work.
Work in hydraulic systems must only be performed by author-
ized personnel.